Which of the following compounds will give a yellow precipitate with iodine and alkali ?

Question

Which of the following compounds will give a yellow precipitate with iodine and alkali ? (A) Methyl acetate (B) Acetamide (C) 2-Hydroxypropane (D) Acetophenone

Tardigrade Admin · Accepted Answer

CH 3 COR is oxidized by NaOI to form iodoform and RCO 2 Na wherein C 6 H 5 COCH 3+ NaOH + I 2 arrow C 6 H 5 CO 2 Na + CHI 3 Methyl acetate and Acetamide will not give a yellow precipitate. But 2-Hydroxypropane and Acetophenone will give a yellow precipitate.

Q. Which of the following compounds will give a yellow precipitate with iodine and alkali ?

Methyl acetate

Acetamide

2-Hydroxypropane

Acetophenone

$C H_{3} COR$ is oxidized by $N a O I$ to form iodoform and $RC O_{2} N a$ wherein
$C_{6} H_{5} COC H_{3} + N a O H + I_{2} \to C_{6} H_{5} C O_{2} N a + C H I_{3}$
Methyl acetate and Acetamide will not give a yellow precipitate. But 2-Hydroxypropane and Acetophenone will give a yellow precipitate.

Q. Which of the following compounds will give a yellow precipitate with iodine and alkali ?

Methyl acetate

Acetamide

2-Hydroxypropane

Acetophenone

CH3​COR is oxidized by NaOI to form iodoform and RCO2​Na wherein C6​H5​COCH3​+NaOH+I2​→C6​H5​CO2​Na+CHI3​ Methyl acetate and Acetamide will not give a yellow precipitate. But 2-Hydroxypropane and Acetophenone will give a yellow precipitate.

$C H_{3} COR$ is oxidized by $N a O I$ to form iodoform and $RC O_{2} N a$ wherein
$C_{6} H_{5} COC H_{3} + N a O H + I_{2} \to C_{6} H_{5} C O_{2} N a + C H I_{3}$
Methyl acetate and Acetamide will not give a yellow precipitate. But 2-Hydroxypropane and Acetophenone will give a yellow precipitate.